Special Effect Glazes
Linda Bloomfield’s ‘Special Effect Glazes’ book was incredibly helpful when trying to develop some textured, experimental glazes. Please see my blog post on the results of the special effect glazes that I used from this book.
These are the recipes that I used-
Pg 128
Barium turquoise volcanic glaze- 1250’c cone 8
Apply black/undercoat ( This is the recipe for the undercoat)
Feldspar 27 (Potash)
Quartz 32 (Flint)
Whiting 21
China Clay 10
Red Iron Oxide 10
Cobalt 1
Pg 128
Magnesium Matt Grey Crater Glaze 1250’c cone 8
Now apply this glaze over the black/brown undercoat recipe
Potash Feldspar 33
Talc 21
Flint 16
China Clay 15
Whiting 12
Zinc Oxide 3
Titanium Dioxide 5
Silicon Carbide 2 (Don’t sieve out)
My issue that I later found out was that the two test tiles that ‘didn’t work’ were the undercoat recipes and I actually had to combine the two recipes together to get the desired result
Pg 121
Lichen glaze cone 8 1250’c
Nepheline Syenite 50
Light Magnesium Carbonate 40
Standard Borax frit 10
Copper Oxide 1
Pg 121
Lichen glaze 1 over satin matt grey (The undercoat glaze)
Potash Feldspar 33
Talc 21
Whiting 12
Flint 16
China Clay 15
Zinc Oxide 3
Nickel Oxide 1